package com.pc;

import java.util.concurrent.BrokenBarrierException;
import java.util.concurrent.CyclicBarrier;

/**
 * @author by lvshh
 * @version 1.0
 * @date 2020/5/9 17:51
 */
public class CyclicBarrierDemo {
    public static void main(String[] args) {

        /**
         * 集齐7龙珠召唤神龙
         */
        CyclicBarrier cyclicBarrier = new CyclicBarrier(7,()->{
            System.out.println("召唤神龙成功");
        });
        for (int i = 1; i <= 7; i++) {
            final int temp = i;
           new Thread(()->{
               System.out.println(Thread.currentThread().getName() + "收集" + temp + "个龙珠");

               try {
                   //等待变为7之后才执行
                   cyclicBarrier.await();
               } catch (InterruptedException e) {
                   e.printStackTrace();
               } catch (BrokenBarrierException e) {
                   e.printStackTrace();
               }
           }).start();
        }
    }
}
